|Type of plating||Features (characteristic value)||Characteristic value|
|Alkaline cyanide silver plating
(1) Dull bath
(2) Semigloss/bright bath
(3) Strike bath
|- The electrical conductivity of silver is the highest among practical metals.
(Ag > Cu > Au > Al > Ni > Fe > Pt > Pb)
- Hard silver plating for connectors, terminals, and switches.
Soft silver plating for IC lead frames.
- Bondability and solderability are both good.
- Silver is the most human-friendly metal with antibacterial action.
- The only disadvantage is its tendency for discoloration. In particular, it has high sulfur sensitivity. Silver sulfide is generated, resulting in black discoloration.
|Hv70 – 90 (soft), Hv110 – 130 (hard)|
|Electroless plating bath||Replacement type electroless silver plating (primary copper plating)|
|Silver mirror reaction
(Silver nitrate + ammonia solution + reducing agent)
|Utilized as a plating method to manufacture glass mirrors and give conductivity to resins.|